Poultry Reproductive System

Poultry Reproductive System The major difference between mammals and poultry reproductive systems is that the embryo of livestock develops inside the female’s body and the poultry embryo develops outside the body. Papilla is the organ in male poultry’s cloaca wall that puts the sperm in the hen’s reproductive tract. Roosters DO NOT have a penis.

Poultry Reproductive System Chickens (domestic birds) have only the left ovary and oviduct functional at maturity (produce eggs). The right ovary and oviduct do not function. Egg- function is reproduction, but is eaten as food by humans and wild animals.

Male Reproductive System

Poultry Reproductive System Domestic chickens lay an egg every 24-28 hours regardless even if sperm are not present. Commercially sold eggs are not fertilized. Incubation time for chicken eggs is 21 days. Turkeys and ducks eggs incubation is 28 days.

Poultry Reproductive System Ovary- poultry only have one functioning ovary as compared to livestock animals. Function: Produces ova and hormones. The yolk of an egg is the ovum. Description: An attached cluster of yellow, round egg yolks.

Poultry Reproductive System Oviduct- tube like structure that consists of five parts: 1. Infundibulum-where fertilization takes place 2. Magnum- secretes the thick egg white or albumen. 3. Isthmus- adds the two shell membranes. 4. Uterus- secretes the thin white, the shell and the shell pigment. 5. Vagina- holds the egg until it is laid.

Poultry Reproductive System Cloaca Function: Location where the papilla of the male bird deposits semen. Egg also passes through this part. Description: Located between vent and base of oviduct.

Poultry Reproductive System Vent Function: Expel egg, liquid and solid waste. Description: Outside opening to the poultry reproductive tract.

https://www.exploratorium.edu/cooking/eggs/e ggcomposition.html Let’s dissect an egg! https://www.exploratorium.edu/cooking/eggs/e ggcomposition.html

Understanding Animal Reproduction Obj. 8.01